PT-2021-3829 · Microsoft · Windows

Yong Chuan Koh + 1 · Published 2021-08-10 · Updated 2025-02-24 · CVE-2021-34486

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Microsoft Windows (affected versions not specified)

Description The issue is related to the Windows Event Tracing service and is caused by inadequate access control. It allows an attacker to elevate their privileges. There is no information provided about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

LPE

Use After Free

Weakness Enumeration

CWE-264

CWE-416

Related Identifiers

BDU:2021-04159

CVE-2021-34486

Affected Products

Windows

References · 18

• 🔥 https://github.com/KaLendsi/CVE-2021-34486 · Exploit
• 🔥 https://github.com/b1tg/CVE-2021-34486-exp · Exploit
• https://bdu.fstec.ru/vul/2021-04159 · Security Note
• https://osv.dev/vulnerability/CVE-2021-34486 · Vendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34486 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-34486 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2021-34486 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34486 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34486 · Security Note
• https://t.me/cvenotify/109886 · Telegram Post
• https://cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-34486 · Note
• https://t.me/cvenotify/19947 · Telegram Post
• https://t.me/cvenotify/19948 · Telegram Post
• https://cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv · Note
• https://cybersecurity-help.cz/vdb/SB2021081036 · Note